CS267382B1 - Method of tufted textile materials' back finish - Google Patents

Abstract

The essence of the reverse treatment of tufted textile materials is the formation of a laminate a work of two or more layers of which at least one layer is formed by a polymeric structure with a melting and melting temperature at least 10 ° C lower than the components, whereas after heat exposure at the melting temperature bind the thermoplastic layer of the article is joined together with tufted textile material from the primary side of the backing layer and the entire structure is cooled to ambient temperature.

Description

(57) The essence of the reverse treatment of tufted textile materials is the formation of a laminate preform of two or more layers, of which at least one layer consists of a polymer formation having a softening and melting point at least 10 ° C lower than the other components. the bonding thermoplastic layer of the article is joined to the tufted textile material from the side of the primary backing layer and the entire body is cooled to ambient temperature.

CS 267 382 Bl

The invention relates to a method for the reverse treatment of tufted textile materials by providing a laminated article of two or more layers, at least one layer of which is a polymeric formation having a softening and melting temperature of at least 10 lower than the other components. preddiela layer was combined with the tufted textile material of _χ-party ny primary backing layer and the body is cooled to room temperature.

The essence of the methods used for the reverse treatment of tufted textile materials is to deposit a polymer-containing layer on their reverse side. Reverse treatments based on aqueous polymer dispersions are the most widespread, where the choice of suitable crosslinker fillers and modification of the polymer component influences the resulting physico-mechanical parameters of the reverse finish as well as the finished product (GDR pat. 156 612; 155 887; US pat. 4 104 213; 4,055,894; 3,951,900; 4,251,416;

CSO 253 421; 248,494).

Other known methods of carpet backing are melt treatments of polyethylene, polypropylene and polyurethanes. (US Pat. 3,914,489; 3,940,525; 3,887,738; JAP Pat. 57,192,442 and 5,239,671.)

The disadvantage of the current state is the high energy demands for the treatment. In the case of reverse treatments with a base component based on polyvinyl acetate or polyvinyl alcohol dispersions, the coating exhibits lower water resistance and low resistance to low temperatures at which it becomes brittle.

Compositions containing styrene-butadiene latexes as a constituent generally have lower adhesion to the textile backing. Reverse treatments based on the melting of thermoplastics have limitations when using POP strips. The use of polyurethane increases the demands on the coating equipment and deteriorates the working environment.

These and other disadvantages are solved by a method of the reverse treatment of tufted textile materials according to the invention, in which a layered preform formed of two or more layers is formed, at least one of which is a polymeric formation having a softening and melting point at least 10 ° C lower than the other , at the melting temperature of the binder, the thermoplastic layer connects to the tufted textile material on the side of the primary backing layer and

Method for the reverse treatment of tufted textile materials, characterized in that the laminated preform formed by mechanical and / or thermal and / or chemical bonding of two or more layers, of which at least one layer is a polymeric composition having a poppy temperature is cooled to ambient temperature.

Advantages of the inventive backing method over the backing methods used are in the reduced energy requirements of the technology of tufted textile materials, in the possibility of utilizing secondary secondary raw materials in the formation of the masterpiece, in improving the heat and sound insulation properties of the finished product, in improved bending resistance, health safety.

Claims (4)

The subject matter of the invention is further elucidated, but not limited by the following examples. Example 1 Laminated preform consisting of a fiber fleece consisting of 80% 12dtex PAD staple fiber, 80 mm cut length and 20% POP staple fiber 6.7 dtex, 60 mm cut length and a 300 g polyethylene underside fleece nozzle. m ^-2 interconnected by stitching using 140 stitches. cm ^-2 is thermally exposed from the fleece side from below the polyethylene-based nozzle at 110 ° C, then bonded from the primary backing layer with the tufted textile material to the cut hair pile layer and the formation thus formed is cooled to ambient temperature. Example 2 The reverse treatment method of Example 1, with the difference that instead of the PAD staple, a polyester shredder prepared by tearing polyester shreds on a three-drum AC-303 shredder from Befama is used. Example 3 The backing process according to Example 1, with the difference that instead of a non-woven web from a polyethylene-based nozzle, a non-woven web from a polypropylene-based nozzle is used and is thermally exposed at 180 ° C. Example 4 The backing process according to Example 1, except that a polyethylene film of 150 g / m ² is used instead of the non-woven under the polyethylene-based nozzle. OF THE INVENTION Forcing and melting at least 10 ° C lower than the other components, after thermal exposure at the melting temperature of the binder thermoplastic layer, the pre-bond is bonded to the tufted textile material by the primary backing layer, and the whole is cooled to ambient temperature.